Typewriting machine



Dec. 9 1

J. WALDHEIM TYPEWRITING MACHINE Filed Nov.- 20, 1918 2 Sheets-Sheet 1 I//7ve/770r:

6 xhfome Dec- 9, J. WALDHEIM TYPEWRITING MACHINE Filed 1918 2Sheets-Shae}, 2

Patented Dec. 9, 1924.

UNHTED STATES PATENT @F'FICE.

JOHN WALDI-IEIIH, OF ELIZABETH, NEW' JERSEY, AS SIGNGR T UNDEEWOOD TYPE-WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION 035 DELAWARE.

TYPEWRITING MACHINE.

Application filed November 20, 1918.

2' '0 all whom it may concern:

Be it known that 1, JOHN WVALDHEIM, a citizen of the United States,residing in Elizabeth, in the county of Union and State .5 of NewJersey, have invented certain new and useful Improvements in TypewritingMachines, of which the following is a specification.

This invention relates to typewriting malo chines, and is illustrated asapplied to a ma chine of the type disclosed in the patent to Wernery andSmith, No. 1,182,055. The machine herein disclosed, however, may be usedwith a plurality of separate webs which may be on independent supplyrolls.

This invention belongs to that class of devices whose object is toproduce considerable slack or looseness between web-supply rolls and theplaten, so as to relieve the platen and its feed-rolls and theline-space mechanism from the drag caused by the work of unwinding thewebs from the heavy supply rolls at the line-spacing operations duringthe writing out of the forms.

Heretofore, for positioning the carbonsheets relatively to the webs, anadjustable rear stop has been used against which the carbon-carriage waspushed while the Web? were held'stationary at a gaging position. Inpracticing the present invention, after a form has been written and theplaten displaced, the webs are grasped and drawn forward. The carbonsand carbon-carriage move with the webs until the carbon-carriageadvances out of the field of its line-by-line feedingmovements andstrikes a front stop. After this, the web or webs are drawn furtherforward preparatory to. producing slack therein. The web is gagedagainst an adjustable leading edge gage, which is located far enoughforward to permit a large amount of web to be unwound from the supplyrolls, this gage serving to determine the extent of relative shiftingbetween the web and the carbons, and being one of the elements thatco-operatc to determine the amount of slack. The front stop for thecarbon-carriage holds this carriage and the carbons stationary duringthe drawing forward of the webs for producing the shift of web, and thisstop is so located that when the webs are brought to the gageconcomitantly the carbons will be correctly positioned be tween the websready for the writing of the next form. This concomitant gaging of theSerial No. 963,243.

webs and positioning of the carbons relatively thereto by the drawingforward of the webs is dependent upon the front stop for thecarbon-carriage; the new organization comprising this stop being afeature in the present invention. The carbon-carriage is now shiftedback, while theplaten is still displaced, and carries back with it notonly the carbons but also the webs, and the carbon-carriage at the endof its backward movement abuts against a rear stop. This backwardmovement of the carbon-carriage to a mechanically predetermined extentdoes three things, first, it brings the formwhich has been written on toposition to be severed by the usual knife, second, it brings the nextunwritten form in position for thefirst line of typing to be donethereon, and third, it deposits the slack in the desiredposition betweenthe carbon-carriage and the supply rolls. Said rear stop therefore is agage for the web-severing operation, and also for 10- cating the webs inposition to receive the first line of typing on the freshform on thewebs, and it also co-operates with the front stop to measure the amountof slack. Heretofore, the carbon-carriage had to be given an extraforward and back movement, or additional reciprocation, in order toproduce slack in the webs.

Preferably, a clamp on the carbon-carriage is used to grip the websduring the backward movement of the carbon-carriage to make sure thatthere will be no slipping, during this movement, between thecarbonsheets and the webs. But this clamp is releasable, not being usedin drawing off the slack from the rolls, which is accomplished entirelyby the pulling forward of the webs.

Other features, and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1' is a perspective view of a machine of the type referred to,showing the present invention as applied thereto.

Figure 2 is a diagrammatic sectional side view, showing the platenthrown up immedia ely after finishing a bill, to enable the relativeshifting of the carbon sheets and'the webs.

Figure 3 is a view similar to Figure 2, but with the webs advanced tothe point where the carbon carriage, in advancing with them. strikesstop. V

Figure 1- is a view similar to Figure 3,

but with the webs advanced until they reach the end gage, thus showingthe webs advanced relatively to the carbon sheets and the unwinding ofthe webs from the rolls.

Figure 5 is a view similar to Figure 4, with the carbon carriage pushedrearwardly with its clamp effective so as to bring the webs and carbonsto the first line of writing of a new section or bill to the printingpoint and also create a slack in the unwound portions of the webs.

The typewriter carriage 1 travels on a rear rail 2 and a front rail, notshown, carrying along with it an extension 3 having side bars 4 and 5and including a roll 6 which runs on a secondary rail 7." VJ henwriting, the parts are in the position shown in Figure 1, in which theplaten 8, journaled in the swing frame 9, restsagainst front and rearfeed-rolls 10, so that a web or webs 11 passed around the platen canhave types 12 print against the front side thereof. As hereinillustrated, the webs 11,

instead of being fan-folded, are drawn from a plurality of rolls 13 fromwhich they ride over the rear end 14 of the extension 3 between sidegages 15 and thence are drawn forwardly over a paper table 16, Figure 2,and thence between the feed-rolls 10 and the platen 8.

In order that a plurality of copies may be made on these webs at onetime, there are provided carbon sheets 17 interleaved between the websby being clipped to arms 13 forming a grating and extending inwardlyfrom the side plates 19 of a carbon carriage 20, said carriage beingadapted to run upon the bars or rails 4 and 5. The webs, which usuallyare provided with printed forms or sections, may be advanced through thegrating. \Vhen a web is being printed upon, its leading end usually liesagainst the front of an upper paper table 21, Figure 1, which isprovided with an extension 22 supporting a gage 23 to enable the slackof the webs to be measured. 7

.When the form is filled out, the typist presses rearwardly a hook 24and draws forwardly on a handle 25, thus swinging the swing frame 9around the shaft 26 upon which it is journaled, thereby raising or, inother words, displacing the platen 8 to the Figure 2 position. l/Vhenthe platen is in this position, the typist seizes the webs 11 and drawsthem forward to produce slack therein, until they reach the positionshown in Figure 4, where they abut against the end gage 23 whichdetermines or measures the amount of slack, and is adjustably mounted onthe extension 22. During the first part of the drawing forward of thewebs 11, the carbon carriage 20 is drawn therewith owing to the frictionof the carbon sheets 17 upon the webs. Before the webs are gaged againstthe slack-measuring gage 23, however, the carbon carriage will strike aproperly located stop 27 adapted to be adjustably positioned in any oneof a plurality of openings 28 in the side 4, with the result that thecarbon carriage is arrested at the point shown in Figure 3, so thatfurther drawing of the webs produces slack therein and also shifts thecarbon sheets rearwardly relatively thereto until the position shown inFigure 4 is reached. The typist then seizes a handle 29 at the end of aforwardly extending bar 30 fast to the carbon carriage, and draws afingerpiece 31 against the handle 29, thus making a clamp 32 effectiveto seize the webs 11. When the webs are thus seized, the typist pushesthe handle 29 rearwardly, bringing the carbon carriage to the pointshown in Figure 5, against a rear stop 33, thus depositing slack loops35 in the webs between the rolls 13 and the carbon carriage 20, theextent of such slack having been deter mined by means of the gage 23.

The clamp 32 is normally held released by a spring 36, so that when thetypist lets go at the Figure 5 position, the spring 36 swings thefinger-piece rearwardly, thus pushing rearwardly the link 37, which ispivoted both to the finger-piece 31 and a rock arm 38, with the resultthat the rock arm rotates the shaft 39 to which it is fast, therebylifting the jaw 40 of the clamp 32 because said jaw is formed as the endof a rock arm 41 fast to the shaft 39. The other jaw of the clamp may bethe crossbar 42 of the carriage 20. The shaft 39 is usually journaled ina bracket .43 fast to one of the side bars 19.

When the typist has positionedthe webs, as shown in Figure 5, the nextoperation is to swing the typewriter swing frame 9 back to the Figure 1position, so that it is hooked in position by the hook 24, and the websareheld firmly between the platen 8 and the feed-rolls 10. The typistthen severs the parts of the webs just written from the main part of thewebs, by drawing them against the usual knife 44. If the stop 27 isproperly positioned relatively to the gage 23 and also relatively to thestop 33, the webs will. besevered at precisely the proper point,irrespective of where writing ceased. Said stop 33 therefore serves as asevering gage. as well as a gage for locating the fresh section. or formof web in position to receive the first line of writing.

In order to enable line-spacing to be done, the carriage comprises theusual line-space handle 45, which is adapted to operate the usualratchet wheel 46 to which the knob 47 is fast, said ratchet wheel beingconnected to the platen axle by the usual pinions 48 and the usual idlepinion, not shown, but mounted on the shaft 26.

From the foregoing it should be under stood that the relative shiftingbetween the carbon-sheets and webs, and the unwinding of slack from thesupply rolls takes place concomitantly with the drawing forward of saidwebs to a gaging position.

It should further be understood that the method of causing the relativeshifting between the carbon-sheets and the webs may be used irrespectiveof whether the webs are separate or of the usual fan-fold type.

In the machine of the present invention, it is not necessary to hold thewebs stationary with one hand while the carboncarriage is movedrearwardly with the other hand, as has commonly been necessaryheretofore, in order to position the carbon-sheets relatively to thewebs. It will also be noted that the webs may be released as soon asthey are gaged if the finger-piece 31 is actuated to make the clamp 32effective. In the case of some webs, such as fan-folded webs, theactuation of the finger-piece 31 may be unnecessary, since the frictionof the webs on the carbon-paper and carbon-carriage may be sufficient tocause the webs to travel vith the carbon-carriage, as this carriage isretracted rearwardly. Also the clamp 82 might be omitted and therelative positions of the carbon-sheets and webs could then bemaintained by the pressure of a finger of the typist, if need be.

Stop 33, which arrests the return stroke of the carbon-carrier in theexact position required for severing the web accurately between the lasttyped form and the next to be typed, is the web-severing gage. The gage23, to measure ofi the slack, is located at a distance of two websections or forms past the severing knife 44, the slack equaling thelength of one of said forms. The length of the slack is equal to thestroke of the carboncarrier between its front stop 27 and itswebsevering stop or gage 38. In other words, the return stroke of thecarrier retracts the web from gage 23 to the position where it is to besevered by knife 44.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a traveling typewritercarriage having a platen, of a traveling carbonpaper carriage to which acarbon-sheet is fastened, a stop for the carbon-paper carriage on itsforward travel, to arrest the carbon-sheet while the sheet extends farenough beyond the writing line to cover a work-form, and a work-formmeasuring gage for engaging the leading end of the web and positioned aplurality of lengths of a work-form beyond the end of the earbon-sheetpositioned as above stated, for measuring out an untyped work-form.

2. In a typewriting machine, the combination with a traveling typewritercarriage and a carbon-paper-carriage, of an adjustable stop forlimitingthe forward travelof said carbon-paper-carriage, a stop forlimiting the backward travel thereof, a platen around which webs areadapted to be passed, an end gage for gaging the end of the web passedaround the platen relatively to the carbons at the forward limit oftheir travel, and a clamp for clamping the web to" thecarbon-paper-carriage to carry the web backwardly from said gagedposition to writing position to create a slack in the web adapted to bedrawn on for line-spacing.

3. In a typewriting machine, the combination with a traveling typewritercarriage having a platen, of a carbon-paper carriage to which acarbon-sheet is fastened, an ad justable stop for the carbon-papercarriage, on its forward travel, to arrest the carbonsheet while saidsheet extends far enough beyond the writing line to cover a workform, anend gage for the web, adjustable to gage a full length of a work-formbeyond the end of the carbon-sheet so positioned, and a clamp upon thecarbon-paper carriage to carry the web backwardly so that the nextwriting line will be approximately at the printing point on the platen.

4. In a typewriting machine, the combination with a traveling typewritercarriage and a carbon-paper carrier, of a revoluble platen, stops forlimiting the forward and backward travel of said carboncarrier, and aslack-measuring gage for the leading edge of the web, the stroke of saidcarrier being about equal to the length of a work-form of the web, andthe distance from the forward point where said carrier is stopped tosaid slack-measuring gage being about twice as great as the length of aworkform.

5. In a typewriting machine, the combination with a traveling typewritercarriage and a carbon-paper carrier, of a revoluble platen, stops forlimiting the forward and backward travel of said carbon-carrier, and aslack-measuring gage for the leading end of the web, the stroke of saidcarrier being about equal to the length of a work-form, and the positionof said gage about two lengths of a work-form from the forwardstop-position of said carrier, and a clamp on said carrier to carry theweb back, so that a slack loop in the web will be obtained when saidcarrier is returned to its backward position.

6. In a typewriting machine, the combina tion with a typewriter-carriageand a carbon-paper carrier, shiftable relatively to a work-web, of arevoluble platen, means for displacing the platen to ease the carbonsthereon, stops for limiting the forward and backward travel of saidcarbon carrier, a Web-severing device at the delivery side of theplaten, and a slack-measnring gage for the leading edge of the Web, saidgage also serving to control the extent of relative shifting between theWeb and the carbon-paper, the stroke of said carboncarrier being aboutequal to the length of a section or form on the Web, and the distancefrom said severing device to said slackmeasuring gage being about twiceas great.

7. In a typewriting machine, the combination With a typewriter-carriagcand a carbon-paper carrier, shiftable relatively to a Work-Web, of arevoluble platen, means for displacing the platen to ease the carbonsthereon, stops for limiting the for- Ward and backward travel of saidcarboncarrier, a Web-severing device at the delivery side of the platen,and a slack-measuring gage for the leading edge of the Web, said gagealso serving to control the extent of relative shifting between the Weband the carbon-paper, the distance from the Websevering device to theslack-measuring gage being substantially equal to the length of theline-feeding stroke of the carbon-carrier plus the length of a sectionor form on the Work-Web.

JOHN VVALDHEIM.

\Vitnesses:

JENNIE P. THORNE, EDITH B. LIBBEY.

